JPH085414Y2 - Remote transmission for work vehicles - Google Patents

Remote transmission for work vehicles

Info

Publication number
JPH085414Y2
JPH085414Y2 JP1989058903U JP5890389U JPH085414Y2 JP H085414 Y2 JPH085414 Y2 JP H085414Y2 JP 1989058903 U JP1989058903 U JP 1989058903U JP 5890389 U JP5890389 U JP 5890389U JP H085414 Y2 JPH085414 Y2 JP H085414Y2
Authority
JP
Japan
Prior art keywords
transmission
shift
operating rod
shift shaft
neutral position
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP1989058903U
Other languages
Japanese (ja)
Other versions
JPH03163U (en
Inventor
浩美 相沢
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MITSUBISHI NOUKI KABUSHIKI KAISHA
Original Assignee
MITSUBISHI NOUKI KABUSHIKI KAISHA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by MITSUBISHI NOUKI KABUSHIKI KAISHA filed Critical MITSUBISHI NOUKI KABUSHIKI KAISHA
Priority to JP1989058903U priority Critical patent/JPH085414Y2/en
Publication of JPH03163U publication Critical patent/JPH03163U/ja
Application granted granted Critical
Publication of JPH085414Y2 publication Critical patent/JPH085414Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Gear-Shifting Mechanisms (AREA)

Description

【考案の詳細な説明】 [産業上の利用分野] 本考案は、トラクタ、コンバイン等の作業用走行車に
おける遠隔式変速装置に関するものである。
DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a remote transmission for a work vehicle such as a tractor and a combine.

[従来技術及び考案が解決しようとする課題] 今日、この種作業用走行車においては、作業の安全性
を確保する一手段として作業者を走行機体から切り離す
遠隔操作が提唱されており、そして、走行機体を遠隔操
作可能にするには、走行機体の操舵装置制動装置等の各
作動部に、送信機からの操作信号に基づいて各作動部を
作動せしめるための作動装置(アクチユエータ)をそれ
ぞれ設ける必要がある。
[Problems to be Solved by Prior Art and Invention] Today, in this type of work vehicle, a remote operation for separating the worker from the traveling machine body has been proposed as one means for ensuring work safety, and In order to enable remote control of the traveling machine body, each operating part such as the steering device braking device of the traveling machine body is provided with an operating device (actuator) for activating each operating part based on the operation signal from the transmitter. There is a need.

しかるに変速装置にあつては、操作位置(前進、後
進、ニユートラル等)が多いばかりでなく、ニユートラ
ル位置の如き中間停止操作も必要となるが、従来のよう
に変速装置をトランスミツシヨンに内装した場合、トラ
ンスミツシヨンが殊更大型で複雑なものとなつてしまう
許りか、トランスミツシヨンの改造等も行う必要があ
り、このため非常にコストがかかり問題となつていた。
However, the transmission requires not only a large number of operating positions (forward, reverse, neutral, etc.) but also an intermediate stop operation such as the neutral position. However, the transmission is internally installed in the transmission as in the past. In such a case, the transmission may be particularly large and complicated, or the transmission may need to be modified, which is very costly and a problem.

[課題を解決するための手段] 本考案は、上記の如き実情に鑑み、これらの欠点を一
掃することができる作業用走行車における遠隔式変速装
置を提供することを目的として創案されたものであつ
て、トランスミツシヨンから突出し、トランスミツシヨ
ンに内装のシフタを変速作動せしめるべく回動する変速
シヤフトと、該変速シヤフトの突出先端部に設けられ、
変速シヤフトと共に回動する作動杆と、該作動杆を挟む
よう対向配設され、遠隔操作に基づく伸縮作動によつて
作動杆に干渉して変速シヤフトをニユートラル位置を含
んだ対応する変速位置にシフトできる一対の単動式の油
圧シリンダと、変速シヤフトがニユートラル位置にシフ
トしたことの検知をする検知手段と、該検知手段のニユ
ートラル位置検知に基づいて油圧シリンダの伸縮作動の
停止をする停止制御手段とを設けたことを特徴とするも
のであものである。
[Means for Solving the Problems] The present invention has been made in view of the above circumstances, and was devised with the object of providing a remote transmission for a work vehicle capable of eliminating these drawbacks. At this point, a gear shift shaft that protrudes from the transmission and rotates so as to operate the shifter inside the transmission to perform a gear shift operation is provided, and a protruding tip portion of the gear shift shaft is provided.
The operating rod that rotates together with the gear shift shaft and the operating rod that is disposed so as to sandwich the operating gear, and the telescopic operation based on remote operation interferes with the operating rod to shift the gear shift shaft to the corresponding gear position including the neutral position. Pair of single-acting hydraulic cylinders that can be used, detection means that detects that the shift shaft shifts to the neutral position, and stop control means that stops the expansion and contraction operation of the hydraulic cylinder based on the detection of the neutral position of the detection means. And is provided.

そしてこの考案は、この構成によつて、トランスミツ
シヨン内を改造することなく、しかもコンパクトで安価
なもので遠隔での変速ができるようにしたものである。
The present invention, by virtue of this structure, is capable of performing remote gear shifting without modifying the inside of the transmission, and is compact and inexpensive.

[実施例] 次に、本考案の一実施例を図面に基づいて説明する。
図面において、1はトラクタの走行機体であつて、該走
行機体1は、駆動輪(実施例では前輪2および後輪3)
が、トランスミツシヨン4を介して伝動されるエンジン
動力により駆動することによつて走行し、また操舵輪
(前輪2)がステアリングホイール5の操作により操舵
作動することによつて走行方向を変えるが、これらの構
成は何れも従来通りである。
[Embodiment] Next, an embodiment of the present invention will be described with reference to the drawings.
In the drawings, reference numeral 1 denotes a traveling machine body of a tractor, the traveling machine body 1 being drive wheels (front wheels 2 and rear wheels 3 in the embodiment).
However, the vehicle travels by being driven by the engine power transmitted through the transmission 4, and the traveling direction is changed by the steering operation of the steered wheels (front wheels 2) by operating the steering wheel 5. All of these configurations are conventional.

6は運転席7の側方に設けられる変速レバーであつ
て、該変速レバー6は、変速ガイドに沿つて操作可能と
なるよう支軸8に対して前後方向および左右方向に揺動
自在に支持されるが、変速レバー6の基端と支軸8の間
に介在するボス機構9は、変速レバー6が前進1速若し
くは後進位置に操作された場合に、後述する第一変速ロ
ッド10を上下動せしめ、また変速レバー6が前進2速若
しくは前進3速位置に操作された場合に、第二変速ロッ
ド11を上下動せしめるように構成されている。一方、1
2、13は前記トランスミツシヨン4から先端が突出する
変速シャフトであつて、変速シヤフト12、13は、基端が
トランスミツシヨン4内の図示しないシフタに連結さ
れ、自らが所定角度回動することによりシフタを変速作
動せしめるものであるが、突出先端部には、先端側が前
記第一、第二変速ロツド10、11の下端部とそれぞれ連結
される変速アーム14、15の基端側が一体的に連結されて
おり、これらにより前記変速レバー6による変速操作が
可能な変速操作機構が構成されている。
Reference numeral 6 denotes a gear shift lever provided on the side of the driver's seat 7, and the gear shift lever 6 is swingably supported in the front-rear direction and the left-right direction with respect to the support shaft 8 so as to be operable along a gear shift guide. However, the boss mechanism 9 interposed between the base end of the speed change lever 6 and the support shaft 8 moves the first speed change rod 10 which will be described later up and down when the speed change lever 6 is operated to the first forward speed or the reverse position. The second shift rod 11 is configured to move up and down when the shift lever 6 is moved to the forward second speed or the forward third speed position. Meanwhile, 1
Reference numerals 2 and 13 denote speed change shafts whose tips project from the transmission 4. The speed change shafts 12 and 13 are connected at their base ends to shifters (not shown) in the transmission 4 and rotate by a predetermined angle. The shifter operates the shifter by shifting the shifter.The base end side of the shift arms 14 and 15 whose tip ends are connected to the lower end portions of the first and second shift rods 10 and 11, respectively, is integrally formed with the projecting tip end portion. And a gear shift operation mechanism capable of gear shift operation by the gear shift lever 6 is configured by these.

一方、16、17は単動式の油圧シリンダであつて、これ
ら一対の油圧シリンダ16、17は、前記変速シヤフト12の
下方に設けられるブラケツト18に、互いに対向する姿勢
で取付けられるが、両シリンダの対向間には、変速シヤ
フト12から径方向に突設される作動杆19の先端部が介在
している。つまり、油圧シリンダ16、17の伸長作動によ
り作動杆19を押圧接当して変速シヤフト12を回動せしめ
ることにより、前記変速レバー6の手動変速操作に代わ
つて変速機構を変速作動せしめることができるようにな
つている。尚、両油圧シリンダの取付け位置は、縮小状
態において作動杆19とは干渉しない位置に設定されてい
る。
On the other hand, 16 and 17 are single-acting hydraulic cylinders, and the pair of hydraulic cylinders 16 and 17 are attached to a bracket 18 provided below the gearshift shaft 12 in a posture in which they face each other. The front end portion of the operating rod 19 which is provided so as to project from the shift shaft shaft 12 in the radial direction is interposed between the two opposed positions. That is, when the hydraulic cylinders 16 and 17 are extended to press the operating rod 19 to rotate the gearshift shaft 12, the gearshift mechanism can be gearshifted instead of the manual gearshift operation of the gearshift lever 6. It is becoming like this. The mounting positions of both hydraulic cylinders are set so that they do not interfere with the operating rod 19 in the contracted state.

さらに、20、21は変速位置を検知するための検知スイ
ツチであつて、これら検知ステイツチ20、21、22は、変
速シヤフト12の側方に設けられるブラケツト23に並設さ
れ、各検知スイツチの検知部20a、21a、22aが変速シヤ
フト12から径方向に突設される検知杆24の先端部との接
当により没入せしめられることにより検知作動するよう
になつている。
Further, 20 and 21 are detection switches for detecting the shift position, and these detection switches 20, 21 and 22 are arranged in parallel with a bracket 23 provided on the side of the shift shaft 12 to detect the detection switches. The portions 20a, 21a, 22a are engaged with the tip end of a detection rod 24 that projects from the gear shift shaft 12 in the radial direction so that the portions 20a, 21a, and 22a are retracted so that the detection operation is performed.

叙述の如く構成された本考案の実施例において、遠隔
操作における1速位置への変速、後進位置への変速は、
油圧シリンダ16、17を伸長作動することにより成され、
またニユートラル状態とするには、検知スイツチ20、22
の検知に基づいて作動杆19を中間位置側に押圧可能な油
圧シリンダを判断すると共に、それぞれ伸長作動し、さ
らに検知スイッチ21が検知作動した時点で作動中の油圧
シリンダを停止制御することで成されることになる。
In the embodiment of the present invention constructed as described above, shifting to the first speed position and shifting to the reverse position by remote control are
Made by extending the hydraulic cylinders 16 and 17,
To switch to the neutral state, the detection switches 20, 22
By detecting the hydraulic cylinder that can press the operating rod 19 toward the intermediate position side based on the detection of, the extension operation is performed, and when the detection switch 21 detects the operation, the operating hydraulic cylinder is stopped and controlled. Will be done.

この様に、本考案が実施されたものにあつては、図示
しない遠隔操作用送信機等からの作動指令信号に基づく
作動で変速機構を変速作動せしめることであるが、この
作動装置は、変速操作機構中に、一対の単動式油圧シリ
ンダ16、17と、検知スイッチ20、21、22を設けるだけで
簡単に構成されることになる。従つて、トランスミツシ
ヨンの構造変更等の大がかりな改造を不要にできる許り
か、構造の簡略化、並びにコンパクト化を計ることがで
きることとなり、この結果、変速機構用作動装置の大幅
なコストダウンを計ることができる。しかも、油圧シリ
ンダは単動式のものを用いているので、油圧シリンダを
作動制御する油圧正義機構の簡略化も計り得る利点があ
る。
As described above, in the embodiment of the present invention, the speed change mechanism is operated by the operation based on the operation command signal from the remote control transmitter (not shown). The operation mechanism is simply configured by providing a pair of single-acting hydraulic cylinders 16, 17 and detection switches 20, 21, 22. Therefore, it is possible to eliminate the need for major modifications such as structural changes to the transmission, and it is possible to simplify the structure and make it compact, resulting in a significant cost reduction of the gearbox actuating device. It can be measured. Moreover, since a single-acting hydraulic cylinder is used, there is an advantage that the hydraulic justice mechanism for controlling the operation of the hydraulic cylinder can be simplified.

[作用効果] 以上要するに、本考案は叙述の如く構成されたもので
あるから、遠隔操作により変速する場合に、該遠隔操作
に基づく油圧シリンダの伸縮作動によつて変速シヤフト
が対応する変速位置にシフトされ、そして該シフトした
変速シヤフトのシフト位置を変速位置検知手段が検知す
ることに基づいて油圧シリンダの伸縮作動が停止し、こ
れによつて遠隔操作による必要な変速制御ができること
になる。
[Advantages] In short, since the present invention is configured as described above, when gear shifting is performed by remote control, the gear shift shaft shifts to the corresponding gear shift position by the telescopic operation of the hydraulic cylinder based on the remote control. When the shift position detecting means detects the shifted position of the shifted shift shaft, the expansion / contraction operation of the hydraulic cylinder is stopped, whereby the necessary shift control by remote operation can be performed.

しかもこの遠隔操作による変速をするよう構成するに
あたり、トランスミツシヨン外において変速シヤフトに
外付け的に設けられる作動杆と、該作動杆を挟むように
して設けられる一対の単動式の油圧シリンダと、変速シ
ヤフトがニユートラル位置にシフトしたことの検知手段
と、該ニユートラル位置検知に基づいて油圧シリンダの
伸縮作動の停止をする停止制御手段とを設けることで良
いことになつて、手動による変速操作具からの伝動機構
中に大がかりな改造を加えることなく、トランスミツシ
ヨン外において前記各部材をそれぞれ設けるという後付
け的な改良を加えることで簡単にできることになる。こ
の結果、トランスミツシヨン構造変更等の大がかりな改
造を不要とできる許りか、既存のものにおいても簡単に
遠隔で変速できるようにすることができる。
Moreover, in the configuration of performing the gear shift by the remote operation, the operating rod externally provided to the gear shift shaft outside the transmission, the pair of single-acting hydraulic cylinders provided so as to sandwich the operating rod, and the gear shift By providing a detection means for shifting the shaft to the neutral position and a stop control means for stopping the expansion / contraction operation of the hydraulic cylinder based on the detection of the neutral position, it suffices to provide a manual shift operation tool. This can be easily done by adding retrofitting that each of the above-mentioned members is provided outside the transmission, without making a major modification in the transmission mechanism. As a result, it is possible to eliminate the need for a major modification such as a change in the transmission structure, or it is possible to easily change the speed of the existing one remotely.

【図面の簡単な説明】[Brief description of drawings]

図面は、本考案に係る作業用走行車における遠隔式変速
装置の一実施例を示したものであつて、第1図はトラク
タの全体側面図、第2図は変速操作機構を示す平面図、
第3図は同上要部側面図、第4図は同上拡大側面図であ
る。 図中、1は走行機体、4はトランスミツシヨン、6は変
速レバー、16、17は油圧シリンダ、20、21、22は検知ス
イツチである。
FIG. 1 shows an embodiment of a remote type transmission for a work vehicle according to the present invention. FIG. 1 is an overall side view of a tractor, and FIG. 2 is a plan view showing a transmission operating mechanism.
FIG. 3 is a side view of the main part of the same as above, and FIG. 4 is an enlarged side view of the same as above. In the figure, 1 is a traveling machine body, 4 is a transmission, 6 is a shift lever, 16 and 17 are hydraulic cylinders, and 20, 21 and 22 are detection switches.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項1】トランスミツシヨンから突出し、トランス
ミツシヨンに内装のシフタを変速作動せしめるべく回動
する変速シヤフトと、該変速シヤフトの突出先端部に設
けられ、変速シヤフトと共に回動する作動杆と、該作動
杆を挟むよう対向配設され、遠隔操作に基づく伸縮作動
によつて作動杆に干渉して変速シヤフトをニユートラル
位置を含んだ対応する変速位置にシフトできる一対の単
動式の油圧シリンダと、変速シヤフトがニユートラル位
置にシフトしたことの検知をする検知手段と、該検知手
段のニユートラル位置検知に基づいて油圧シリンダの伸
縮作動の停止をする停止制御手段とを設けたことを特徴
とする作業用走行車における遠隔式変速装置。
Claims: 1. A shift shaft that projects from a transmission and rotates to shift a shifter installed in the transmission so that the shifter operates, and an operating rod that is provided at a protruding tip of the shift shaft and that rotates together with the shift shaft. , A pair of single-acting hydraulic cylinders that are arranged opposite to each other with the operating rod interposed therebetween and that can be shifted to a corresponding shift position including a neutral position by interfering with the operating rod by telescopic operation based on remote operation. And a detection means for detecting that the shift shaft shifts to the neutral position, and a stop control means for stopping the expansion and contraction operation of the hydraulic cylinder based on the detection of the neutral position by the detection means. Remote transmission for work vehicles.
JP1989058903U 1989-05-22 1989-05-22 Remote transmission for work vehicles Expired - Lifetime JPH085414Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1989058903U JPH085414Y2 (en) 1989-05-22 1989-05-22 Remote transmission for work vehicles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1989058903U JPH085414Y2 (en) 1989-05-22 1989-05-22 Remote transmission for work vehicles

Publications (2)

Publication Number Publication Date
JPH03163U JPH03163U (en) 1991-01-07
JPH085414Y2 true JPH085414Y2 (en) 1996-02-14

Family

ID=31584933

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989058903U Expired - Lifetime JPH085414Y2 (en) 1989-05-22 1989-05-22 Remote transmission for work vehicles

Country Status (1)

Country Link
JP (1) JPH085414Y2 (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6129157U (en) * 1984-07-27 1986-02-21 日産ディーゼル工業株式会社 Power-assisted gear shift operation device

Also Published As

Publication number Publication date
JPH03163U (en) 1991-01-07

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